...which consisted of a network of tribunals, whose leaders were given express pontifical delegation to judge and, if need be, condemn those charged with the crime of heresy. Following a practice in force in all European judicial systems until the end of the eighteenth century, this process made allowance for the use of torture in certain very specific circumstances, and, in the most serious cases, for condemnation to death by burning. Civil authority (the so-called “secular arm”) carried out the death sentence. In fact, the temporal powers were generally eager to assist in the struggle against heresy, because the heretic was perceived to be a threat to society at large. vatican source